package org.walkerljl.commons.thread;

import java.util.concurrent.ThreadFactory;
import java.util.concurrent.atomic.AtomicInteger;

/**
 * NamedThreadFactory
 *
 * @author lijunlin
 */
public class NamedThreadFactory implements ThreadFactory {
	
	private static final AtomicInteger POOL_SEQ = new AtomicInteger(1);
	private final AtomicInteger mThreadNum = new AtomicInteger(1);
	private final String mPrefix;
	private final boolean mDaemo;
	private final ThreadGroup mGroup;

	public NamedThreadFactory() {
		this("pool-" + POOL_SEQ.getAndIncrement(),false);
	}

	public NamedThreadFactory(String prefix) {
		this(prefix, false);
	}

	public NamedThreadFactory(String prefix, boolean daemo) {
		mPrefix = prefix + "-thread-";
		mDaemo = daemo;
        SecurityManager s = System.getSecurityManager();
        mGroup = ( s == null ) ? Thread.currentThread().getThreadGroup() : s.getThreadGroup();
	}

	@Override
	public Thread newThread(Runnable runnable) {
		String name = mPrefix + mThreadNum.getAndIncrement();
        Thread ret = new Thread(mGroup, runnable , name, 0);
        ret.setDaemon(mDaemo);
        return ret;
	}

	public ThreadGroup getThreadGroup() {
		return mGroup;
	}
}